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gtk: Translate navigation events coordinates

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If the application passed down some pointer coordinates, translate those
from display coordinates to stream coordinates, so things work as
expected even if the video is resized.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/974>
This commit is contained in:
Bastien Nocera 2021-05-05 14:28:15 +02:00 committed by GStreamer Marge Bot
parent 604278a194
commit 9cd6d02cff
1 changed files with 13 additions and 0 deletions
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13
ext/gtk/gstgtkbasesink.c
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@ -283,6 +283,19 @@ gst_gtk_base_sink_navigation_send_event (GstNavigation * navigation,
GstGtkBaseSink *sink = GST_GTK_BASE_SINK (navigation);
GstEvent *event;
GstPad *pad;
gdouble x, y;
if (gst_structure_get_double (structure, "pointer_x", &x) &&
gst_structure_get_double (structure, "pointer_y", &y)) {
GtkGstBaseWidget *widget = gst_gtk_base_sink_get_widget (sink);
gdouble stream_x, stream_y;
gtk_gst_base_widget_display_size_to_stream_size (widget,
x, y, &stream_x, &stream_y);
gst_structure_set (structure,
"pointer_x", G_TYPE_DOUBLE, (gdouble) stream_x,
"pointer_y", G_TYPE_DOUBLE, (gdouble) stream_y, NULL);
}
event = gst_event_new_navigation (structure);
pad = gst_pad_get_peer (GST_VIDEO_SINK_PAD (sink));